Hydraulic tailstock device and lathe

The utility model provides a hydraulic tailstock device and a lathe. The hydraulic tailstock device comprises a tailstock body, a tailstock sleeve, a hydraulic device and a hydraulic system, wherein the tailstock body is arranged on a lathe body; the tailstock sleeve penetrates the interior of the tailstock body, and can move relative to the tailstock body; the front end of the tailstock sleeve is provided with a drill; the hydraulic device comprises a cylinder block and a piston; the cylinder block and the tailstock body are fixedly connected; a piston rod of the piston and the tailstock sleeve are fixedly connected; the hydraulic system is connected with the cylinder block of the hydraulic device; and the hydraulic system is used for controlling the piston rod of the hydraulic device to stretch so as to drive the tailstock sleeve to move relative to the tailstock body. According to the hydraulic tailstock device and the lathe provided by the utility model, the movement of the tailstock sleeve is controlled